HostInterface: Don't try to resume system without game code

src/core/host_interface.cpp

@@ -487,8 +487,18 @@ bool HostInterface::ResumeSystemFromState(const char* filename, bool boot_on_fai
     return false;
 
   const bool global = m_system->GetRunningCode().empty();
-  const std::string path =
-    global ? GetGlobalSaveStateFileName(-1) : GetGameSaveStateFileName(m_system->GetRunningCode().c_str(), -1);
+  if (m_system->GetRunningCode().empty())
+  {
+    ReportFormattedError("Cannot resume system with undetectable game code from '%s'.", filename);
+    if (!boot_on_failure)
+    {
+      DestroySystem();
+      return true;
+    }
+  }
+  else
+  {
+    const std::string path = GetGameSaveStateFileName(m_system->GetRunningCode().c_str(), -1);
     if (FileSystem::FileExists(path.c_str()))
     {
       if (!LoadState(path.c_str()) && !boot_on_failure)
@@ -504,6 +514,7 @@ bool HostInterface::ResumeSystemFromState(const char* filename, bool boot_on_fai
       DestroySystem();
       return false;
     }
+  }
 
   return true;
 }